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Add worldCopyJumpCenter option to Map #6723

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Add worldCopyJumpCenter option to Map #6723

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10 changes: 9 additions & 1 deletion src/map/handler/Map.Drag.js
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Expand Up @@ -44,6 +44,13 @@ Map.mergeOptions({
// like markers and vector layers are still visible.
worldCopyJump: false,

// @option worldCopyJumpCenter: Number = 0.0
// If worldCopyJump is enabled, this option sets the central longitude that
// the map will jump to stay near. For example, if your map is focused on
// the Pacific, you could add all your features with longitudes in the
// range [0,360] and set worldCopyJumpCenter to 180.
worldCopyJumpCenter: 0.0,

// @option maxBoundsViscosity: Number = 0.0
// If `maxBounds` is set, this option will control how solid the bounds
// are when dragging the map around. The default value of `0.0` allows the
Expand Down Expand Up @@ -146,7 +153,8 @@ export var Drag = Handler.extend({

_onZoomEnd: function () {
var pxCenter = this._map.getSize().divideBy(2),
pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
lng = this._map.options.worldCopyJumpCenter,
pxWorldCenter = this._map.latLngToLayerPoint([0, lng]);

this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
Expand Down